A unique class of materials developed by researchers at Sandia National Laboratories in Livermore, Calif., may prove useful in textile manufacturing, biomedical diagnostics, and other applications requiring the modification of surface properties of liquids or solids. Sandia's cleavable (easily separated) surface active agent (or, "surfactant"), based on Diels-Alder chemistry, differs from other surfactants in that it can be thermally degraded and easily removed in an inexpensive, environmentally harmless manner.